| 1 | #! /bin/sh
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| 2 | # Copyright (C) 2003, 2006 Free Software Foundation, Inc.
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| 3 | #
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| 4 | # This file is part of GNU Automake.
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| 5 | #
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| 6 | # GNU Automake is free software; you can redistribute it and/or modify
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| 7 | # it under the terms of the GNU General Public License as published by
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| 8 | # the Free Software Foundation; either version 2, or (at your option)
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| 9 | # any later version.
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| 10 | #
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| 11 | # GNU Automake is distributed in the hope that it will be useful,
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| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | # GNU General Public License for more details.
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| 15 | #
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| 16 | # You should have received a copy of the GNU General Public License
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| 17 | # along with Automake; see the file COPYING. If not, write to
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| 18 | # the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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| 19 | # Boston, MA 02110-1301, USA.
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| 20 |
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| 21 | # Make sure aclocal does not overwrite aclocal.m4 needlessly.
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| 22 | # Also make sure automake --no-force does not overwrite Makefile.in needlessly.
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| 23 |
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| 24 | . ./defs || exit 1
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| 25 |
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| 26 | set -e
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| 27 |
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| 28 | cat >> configure.in << 'END'
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| 29 | SOME_DEFS
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| 30 | AC_CONFIG_FILES([sub/Makefile])
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| 31 | END
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| 32 |
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| 33 | mkdir sub
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| 34 | : > sub/Makefile.am
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| 35 |
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| 36 | cat >> Makefile.am << 'END'
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| 37 | SUBDIRS = sub
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| 38 | include fragment.inc
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| 39 | END
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| 40 |
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| 41 | : > fragment.inc
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| 42 |
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| 43 | mkdir m4
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| 44 | echo 'AC_DEFUN([SOME_DEFS], [])' > m4/somedefs.m4
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| 45 |
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| 46 | $sleep
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| 47 |
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| 48 | $ACLOCAL -I m4
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| 49 |
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| 50 | # Automake will take aclocal.m4 to be newer if it has the same timestamp
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| 51 | # as Makefile.in. Avoid the confusing by sleeping.
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| 52 | $sleep
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| 53 |
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| 54 | $AUTOMAKE --no-force
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| 55 |
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| 56 | $sleep
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| 57 |
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| 58 | touch foo
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| 59 | $ACLOCAL -I m4
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| 60 | $AUTOMAKE --no-force
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| 61 |
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| 62 | # aclocal.m4 and Makefile.in should not have been updated, so `foo'
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| 63 | # should be younger
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| 64 | test `ls -1t aclocal.m4 Makefile.in sub/Makefile.in foo | sed 1q` = foo
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| 65 |
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| 66 | $sleep
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| 67 | $ACLOCAL -I m4 --force
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| 68 | test `ls -1t aclocal.m4 foo | sed 1q` = aclocal.m4
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| 69 | # We still use --no-force for automake, but since aclocal.m4 has
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| 70 | # changed all Makefile.ins should be updated.
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| 71 | $sleep
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| 72 | $AUTOMAKE --no-force
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| 73 | test `ls -1t Makefile.in foo | sed 1q` = Makefile.in
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| 74 | test `ls -1t sub/Makefile.in foo | sed 1q` = sub/Makefile.in
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| 75 |
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| 76 | touch m4/somedefs.m4
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| 77 | $sleep
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| 78 | touch foo
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| 79 | $sleep
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| 80 | $ACLOCAL -I m4
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| 81 | $sleep
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| 82 | $AUTOMAKE --no-force
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| 83 |
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| 84 | # aclocal.m4 should have been updated, although its contents haven't changed.
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| 85 | test `ls -1t aclocal.m4 foo | sed 1q` = aclocal.m4
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| 86 | test `ls -1t Makefile.in foo | sed 1q` = Makefile.in
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| 87 | test `ls -1t sub/Makefile.in foo | sed 1q` = sub/Makefile.in
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| 88 |
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| 89 | touch fragment.inc
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| 90 | $sleep
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| 91 | touch foo
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| 92 | $sleep
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| 93 | $ACLOCAL -I m4
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| 94 | $AUTOMAKE --no-force
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| 95 | # Only ./Makefile.in should change.
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| 96 | test `ls -1t aclocal.m4 foo | sed 1q` = foo
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| 97 | test `ls -1t Makefile.in foo | sed 1q` = Makefile.in
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| 98 | test `ls -1t sub/Makefile.in foo | sed 1q` = foo
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| 99 |
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| 100 | grep README Makefile.in && exit 1
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| 101 |
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| 102 | : > README
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| 103 | $sleep
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| 104 | touch foo
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| 105 | $sleep
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| 106 | $AUTOMAKE --no-force
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| 107 | # Even if no dependency change, the content changed.
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| 108 | test `ls -1t Makefile.in foo | sed 1q` = Makefile.in
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| 109 | test `ls -1t sub/Makefile.in foo | sed 1q` = foo
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| 110 |
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| 111 | grep README Makefile.in
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| 112 |
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| 113 | : > sub/Makefile.in
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| 114 | $sleep
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| 115 | touch foo
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| 116 | $sleep
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| 117 | $ACLOCAL -I m4
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| 118 | $AUTOMAKE --no-force
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| 119 | # Only sub/Makefile.in should change.
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| 120 | test `ls -1t aclocal.m4 foo | sed 1q` = foo
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| 121 | test `ls -1t Makefile.in foo | sed 1q` = foo
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| 122 | test `ls -1t sub/Makefile.in foo | sed 1q` = sub/Makefile.in
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